Merge pull request #2634 from AkihiroSuda/inetaf-tcpproxy #5610

Job	Run time
Lints	3m 18s
Colima (v0.6.5)	7m 40s
Integration tests (on Linux) (alpine.yaml)	6m 40s
Integration tests	21m 55s
Unit tests (1.22.x)	5m 41s
Integration tests (on Linux) (debian.yaml)	7m 10s
Upgrade test (v0.15.1)	19m 51s
Unit tests (1.23.x)	5m 50s
Integration tests (on Linux) (fedora.yaml)	8m 11s
VMNet test	56s
Integration tests (on Linux) (archlinux.yaml)	8m 56s
vz (default.yaml)	14m 49s
Integration tests (on Linux) (opensuse.yaml)	8m 3s
vz (fedora.yaml)	14m 3s
Windows tests	7m 41s
Integration tests (on Linux) (experimental/net-user-v2.yaml)	11m 14s
Integration tests (on Linux) (experimental/9p.yaml)	7m 44s
Integration tests (on Linux) (docker.yaml)	7m 56s
Integration tests (on Linux) (../hack/test-templates/alpine-9p-writable.yaml)	6m 20s
Integration tests (on Linux) (../hack/test-templates/test-misc.yaml)	19m 49s
	3h 13m 47s

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